Micron's HBM4 Enters Mass Production for Nvidia's Next-Gen Platform

This milestone could be a defining moment for the memory chip maker's stock.

Mar. 29, 2026 at 3:50pm

Got story updates? Submit your updates here. ›

Micron Technology has announced that its HBM4 36GB 12-Hi memory, designed specifically for Nvidia's Vera Rubin platform, is now in mass production. This is a pivotal moment for Micron as it shows the company is a true competitor in the high-bandwidth memory (HBM) market, which is critical for the performance of GPUs and AI chips.

Why it matters

Micron has long been considered a technology laggard compared to Korean rivals Samsung and SK Hynix in the HBM space. By getting its HBM4 solution into mass production at the same time as its competitors, Micron is demonstrating its ability to be a leader and capture significant market share in this important and growing segment.

The details

Micron's HBM4 solution offers more than double the bandwidth of HBM3 and a 20% improvement in power efficiency, which is crucial for the energy-intensive demands of AI workloads. Micron's HBM4 is also specifically designed for Nvidia's Vera Rubin platform, which combines GPUs and CPUs into one package to provide a complete AI infrastructure solution.

  • In mid-March 2026, Micron announced its HBM4 memory was in mass production.
  • Micron has confirmed its HBM4 capacity for this year is already sold out under binding contracts.

The players

Micron Technology

An American semiconductor company that is a major global producer of dynamic random-access memory (DRAM) and NAND flash memory.

Nvidia

An American multinational technology company that designs graphics processing units (GPUs) for the gaming and professional markets, as well as system on a chip units (SoCs) for the mobile computing and automotive market.

Got photos? Submit your photos here. ›

What they’re saying

“Micron's HBM4 solution is already a strong technological achievement, with more than double the bandwidth of HBM3 and providing a 20% improvement in power efficiency.”

— Geoffrey Seiler, Author

What’s next

Micron has also announced its first-ever five-year strategic customer agreement, which will provide the company with more visibility than its traditional one-year or quarterly arrangements. This could help transform Micron from a cyclical commodity play to a high-tech AI growth stock.

The takeaway

Micron's ability to get its HBM4 memory into mass production at the same time as its competitors is a significant milestone that demonstrates the company's technological capabilities and potential to capture market share in this critical segment for AI and high-performance computing.